pwm.c

avr输出单路占空比可调的pwm。希望对初学者有有所帮助

 #include<avr/io.h>
 
 
 #define  uint   unsigned  int
 #define  uchar  unsigned  char
 
 
 
 
 
 
 
 
 
 
 main()
 {TCCR1A=_BV(COM1A1)|_BV(WGM11);
  TCCR1B=_BV(CS10)|_BV(WGM12)|_BV(WGM13);
  DDRD=_BV(PD5);
  ICR1=0X07FF;
  OCR1A=0x0500;
  }